Automatic Shoe-Cover Machine and Shoe-Cover Packaging Mechanism

ABSTRACT

The present invention provides an automatic shoe-cover machine, including a shoe-cover roller, a blocking device, a cutting device and a sliding pull hook, wherein a plurality of shoe-covers are capable of being wound on the shoe-cover roller, wherein each of shoe-covers has a foot inserting opening, wherein a blocking device, a cutting device and a sliding pull hook are orderly provided with the shoe-cover roller along the radial direction thereof, wherein the sliding pull hook is connected to a driver, wherein the driver is connected with an electric motor and an electric controller. The automatic shoe-cover machine can utilize the action of dragging from a foot and the characteristics of connecting of the coordinating shoe-covers to achieve the object of automatically wearing shoe-covers, generating shoe-covers and is reliable. The present invention further provides an automatic packaging mechanism for an automatic shoe-cover machine.

CROSS REFERENCE OF RELATED APPLICATION

This is a non-provisional application that claims the benefit ofpriority under 35U.S.C.§119 to a PCT application, application numberPCT/CN2012/071864, filed Mar. 2, 2012.

NOTICE OF COPYRIGHT

A portion of the disclosure of this patent document contains materialwhich is subject to copyright protection. The copyright owner has noobjection to any reproduction by anyone of the patent disclosure, as itappears in the United States Patent and Trademark Office patent files orrecords, but otherwise reserves all copyright rights whatsoever.

BACKGROUND OF THE PRESENT INVENTION

1. Field of Invention

The present invention relates to an automatic shoe-cover machine, andthe present invention further relates to a shoe-cover packagingmechanism adapted for the automatic shoe-cover machine.

2. Description of Related Arts

In order to solve the environmental sanitation problems, for examplekeeping indoor sanitation clean, many patents and products involved toautomatic shoe-cover machine have been published and/or on the market atpresent, for example an drag-automatic shoe-cover machine (CN patentnumber 200810046882.X, 200810048320.9) which I myself brought to marketin 2009. Although the automatic shoe-cover machine is able to solve theproblems, for example low shoe-cover getting rate, complex structure andhigh cost of pre-existing automatic shoe-cover machines, but because theprocesses of the shoe-cover for the automatic shoe-cover machine iscomplicated, as the drag-automatic shoe-cover machines are accepted bythe majority of users and brought to the market in abundant supply, theshoe-cover shortage begins to appear, which seriously limits the salesand market popularity of the automatic shoe-cover machine. Theshoe-cover shortage is a common problem about the automatic shoe covermachines on the market and patented technology being published, whichhas not been reasonably solved and paid sufficient attention to, forexample Stephen Liye Chen's patent (Pub. No.: US2007/0204568 A1)disclosed a shoe-cover packaging method and an application equipmenttechnology, wherein the organized shoe-covers are needed for theapplication equipment of the patent and at least one guide rail has tobe needed and aligned with each of the organized shoe-covers, whichresults in a complicated manufacturing process so as not to supply to amass production of the shoe-covers cannot be achieved and make theshoe-cover have a high cost, and if employing an automatic manufacturingequipment for packaging these shoe-covers to solve this problem, andbecause the shoe-coves having a high level of packaging are required inthis technology, so the automatic manufacturing equipment will be verycomplex and difficult to succeed, and the research and development fundsare very large such that it cannot be developed and prepared.

SUMMARY OF THE PRESENT INVENTION

The main object of the present invention is to overcome the abovedisadvantage so as to provide an automatic shoe-cover machine and ashoe-cover packaging mechanism, wherein the automatic shoe-cover machineand the shoe-cover packaging mechanism both have no need of specialrequirements for manufacturing or packaging the shoe-covers used for theautomatic shoe-cover machine, and the drag-action from a foot of a userand the corresponding shoe-covers having a connecting relationship canbe utilized to make automatic and continuous actions of wearingshoe-covers to be achieved.

The object of the present invention is achieved by the followingautomatic shoe-cover machine:

an automatic shoe-cover machine comprising a shoe-cover roller, ablocking device, a cutting device and a sliding pull hook, whereinmultiple serially-connected shoe-covers are wound on the shoe-coverroller, wherein each of shoe-covers has a foot inserting opening,wherein the blocking device, the cutting device and the sliding pullhook are sequentially provided in the radial direction thereof, whereinthe sliding pull hook is connected to a driver, wherein the driver isconnected with an electric motor and an electric controller.

In the above technical solution, each of the shoe-covers is made of softmaterial and has a bag-shaped structure, wherein multiple shoe-coversare aligned in a linear manner by connecting points providedrespectively at two ends of each of the shoe-covers and wound on theshoe-cover roller to define a coil-shaped structure.

In the above technical solution, the blocking device comprises ablocking portion and two supporting portion, wherein the blockingportion is a coordinating member, or a blocking panel or a blockingstrip, wherein each of the blocking panel and the blocking strip ismovably arranged, wherein each of the supporting portions is providedwith the blocking portion.

Further, the blocking device is a single blocking member or two or moreblocking members provided side by side, wherein the cutting device isprovided above the blocking device.

Further, the cutting device comprises a cutter and an electric drivingdevice, wherein a cutter protecting casing is provided on the cutter.

In the above technical solution, one or more shoe-cover transmittingwheels are provided below the shoe-cover roller, wherein the shoe-covertransmitting wheel is connected with a shoe-cover in a thread-shapedconnection.

In the above technical solution, the driver comprises a driving band andtwo driving wheels, wherein the two driving wheels are respectivelyprovided outside of the shoe-cover roller and outside of the slidingpull hook, wherein the driving band has two ends covering the twodriving wheels respectively and connected with the sliding pull hook,wherein the driving band is a belt or a chain, each of the drivingwheels is a pulley or a chain wheel.

In the above technical solution, the driver comprises a driving screwand a screw nut, wherein the driving screw is provided below theshoe-cover roller, and the screw nut is sleeved on the driving screw andis connected with the sliding pull hook.

In the above technical solution, the driver comprises a driving chainand a driving gear, wherein the driving gear is provided below theshoe-cover roller, the driving chain and the driving gear are engagedwith each other, and the driving chain is connected with the slidingpull hook.

In the above technical solution, the shoe-cover roller is a hollowsleeve, wherein a central fixing rod of the shoe-cover roller isprovided in the hollow sleeve, and a cone-shaped fixing casing and astopping friction material for the shoe-cover roller are respectivelyprovided on two ends of the central fixing rod, wherein the stoppingfriction material for the shoe-cover roller is adapted for controllingthe friction force resulted from the turning of the central fixing rodby adjusting a regulating bolt.

A shoe-cover packaging mechanism comprises a shoe-cover roller and theshoe-covers wound on the shoe-cover roller, wherein each of theshoe-covers has a bag-shaped structure having an inserting opening,wherein the inserting opening has elastic material provided thereon, andmultiple shoe-covers are serially connected in a linear manner by theconnecting points respectively provided on two ends of each of theshoe-covers and are wound on the shoe-cover roller to be packaged todefine a coil-shaped structure, wherein the shoe-cover roller isprovided in an axis of the coil-shaped structure made of theshoe-covers.

In the above technical solution, the shoe-cover roller is acylinder-shaped roller.

Further, the shoe-cover roller has a protrusion provided in a middleportion thereof, wherein the protrusion has a cross section bigger thana cross section of each of to two ends of the cylinder-shaped roller.Further, the shoe-covers having the inserting openings which are underan opened state are provided on the middle portion of the shoe-coverroller or two ends of the protrusion provided on the middle portion ofthe shoe-cover roller.

Further, the shoe-cover package and the protrusion of the shoe-coverroller are round, oval, spindle-shaped or rectangular.

In the above technical solution, the connecting point provided betweentwo neighboring shoe-covers is a structure accordingly defined duringthe edge banding process of two ends of each of the two neighboringshoe-covers.

Further, one of the connecting points of one shoe-cover is connected toone end or two ends of another neighboring connecting point.

In the above technical solution, the shoe-cover roller is a hollowsleeve, wherein a central fixing rod of the shoe-cover roller isprovided in the hollow sleeve, and two cone-shaped fixing casings arerespectively provided with two ends of the central fixing rod, whereinthe two ends of the central fixing rod extend out of the shoe-coverroller, wherein a smaller opening of each of the cone-shaped fixingcasings faces the middle portion of the shoe-cover roller.

The present invention employing the above technical solution has thefollowing advantages:

1. Utilizing the drag-action of a foot and the connection relationshipsamong the corresponding shoe-covers to enable automatic and continuousactions of wearing shoe-covers to be achieved.

2. Utilizing the connecting points formed accordingly during the heatsealing for edge banding process of the shoe-covers, and the connectingprocess of the shoe-covers is simple and reliable, has no need ofadditional manual operations and components.

3. The sequentially-connected shoe-covers are wound on the shoe-coverroller, which helps the automatic shoe-cover machine to be operated in acontinuous and reliable manner so that the production cost is decreasedand the production efficiency is greatly improved.

4. The shoe-cover packaging process employing the shoe-cover roller,which only need a rolling device provided in the terminal of theshoe-cover manufacturing device, is able to accomplish the wholeautomatic operation for manufacturing and packaging the shoe-covers andgives a great contribute to stable quality and mass production of theshoe-covers.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a schematic diagram of a first connection between theshoe-covers of the present invention.

FIG. 1B is a schematic diagram of a second connection between theshoe-covers of the present invention.

FIG. 1C is a schematic diagram of a third connection between theshoe-covers of the present invention.

FIG. 1D is a schematic diagram of a fourth connection between theshoe-covers of the present invention.

FIG. 2A is a schematic diagram of a first structure type of theshoe-cover roller of the present invention.

FIG. 2B is a schematic diagram of a second structure type of theshoe-cover roller of the present invention.

FIG. 2C is a schematic diagram of a third structure type of theshoe-cover roller of the present invention.

FIG. 2D is a schematic diagram of a fourth connection between theshoe-covers of the present invention.

FIG. 3A is a schematic diagram of a first packaging method for theshoe-covers having a connection type of the present invention.

FIG. 3B is a schematic diagram of a second packaging method for theshoe-covers having a connection type of the present invention.

FIG. 3C is a schematic diagram of a third packaging method for theshoe-covers having a connection type of the present invention.

FIG. 3D is a schematic diagram of a fourth packaging method for theshoe-covers having a connection type of the present invention.

FIG. 3E is a schematic diagram of the shoe-covers shown in FIG. 3D,wherein the shoe-covers are under a wound state.

FIG. 4 is a schematic diagram of a fixing device for the shoe-coversleeve of the present invention

FIG. 5A is a schematic diagram of a first step of the operating processaccording to a first embodiment of the present invention.

FIG. 5B is a schematic diagram of a second step of the operating processaccording to a first embodiment of the present invention.

FIG. 5C is a schematic diagram of a third step of the operating processaccording to a first embodiment of the present invention.

FIG. 5D is a schematic diagram of a fourth step of the operating processaccording to a first embodiment of the present invention.

FIG. 5E is a schematic diagram of a fifth step of the operating processaccording to a first embodiment of the present invention.

FIG. 5F is a schematic diagram of a sixth step of the operating processaccording to a first embodiment of the present invention.

FIG. 6A is a concise schematic diagram of a first step of the operatingprinciple according to a first embodiment of the present invention.

FIG. 6B is a concise schematic diagram of a second step of the operatingprinciple according to a first embodiment of the present invention.

FIG. 6C is a concise schematic diagram of a third step of the operatingprinciple according to a first embodiment of the present invention.

FIG. 6D is a concise schematic diagram of a fourth step of the operatingprinciple according to a first embodiment of the present invention.

FIG. 6E is a concise schematic diagram of a fifth step of the operatingprinciple according to a first embodiment of the present invention.

FIG. 6F is a concise schematic diagram of a sixth step of the operatingprinciple according to a first embodiment of the present invention.

FIG. 7A is a schematic diagram of a first structure type of a shoe-covertransmitting wheel of the present invention.

FIG. 7B is a schematic diagram of a second structure type of ashoe-cover transmitting wheel of the present invention.

FIG. 7C is a schematic diagram of a third structure type of a shoe-covertransmitting wheel of the present invention.

FIG. 8 is a schematic diagram of a stopping element of a shoe-cover ofthe present invention.

FIG. 9A is a schematic diagram of a blocking portion for shoe-covers ofthe present invention, wherein the blocking portion for shoe-covers is afirst coordinating member, wherein the first coordinating member isunder a first work state.

FIG. 9B is a schematic diagram of a blocking portion for shoe-covers ofthe present invention, wherein the blocking portion for shoe-covers is afirst coordinating member, wherein the first coordinating member isunder a second work state.

FIG. 9C is a schematic diagram of a blocking portion for shoe-covers ofthe present invention, wherein the blocking portion for shoe-covers is asecond coordinating member, wherein the first coordinating member isunder a first work state.

FIG. 9D is a schematic diagram of a blocking portion for shoe-covers ofthe present invention, wherein the blocking portion for shoe-covers is asecond coordinating member, wherein the first coordinating member isunder a second work state.

FIG. 10A is a schematic diagram of a first driver for a shoe-coversliding pull hook of the present invention.

FIG. 10B is a schematic diagram of a second driver for a shoe-coversliding pull hook of the present invention.

FIG. 10C is a schematic diagram of a third driver for a shoe-coversliding pull hook of the present invention.

FIG. 11 is a schematic diagram of a protecting casing for a cuttingdevice of the present invention.

FIG. 12A is a concise schematic diagram of a first step of the operatingprinciple according to a second embodiment of the present invention.

FIG. 12B is a concise schematic diagram of a second step of theoperating principle according to a second embodiment of the presentinvention.

FIG. 12C is a concise schematic diagram of a third step of the operatingprinciple according to a second embodiment of the present invention.

FIG. 12D is a concise schematic diagram of a fourth step of theoperating principle according to a second embodiment of the presentinvention.

FIG. 13 is a concise schematic diagram of a control circuit of thepresent invention.

In the drawings: 1. shoe-cover, 2. shoe-cover connecting point, 3.Elastic material, 4. foot inserting opening, 5. shoe-cover roller, 5-1.protrusion provided at the middle portion of the shoe-cover roller, 6.cutting device, 7. blocking device, 7-1. blocking portion, 7-2.supporting portion, 8. transmitting wheel for shoe-covers, 9. regulatingspring, 10. central fixing rod for a shoe-cover roller, 11. cone-shapedfixing casing, 12. stopping friction material for a shoe-cover roller,13. pressing panel for friction material, 14. regulating bolt, 15.sliding pull hook, 16. coordinating member for a stopping mechanism, 17.driving band, 18. driving wheel, 19. driving screw, 20. screw nut, 21.driving chain, 22. driving gear, 23. cutter, 24. cutter protectingcasing.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The following description is disclosed to enable any person skilled inthe art to make and use the present invention. Preferred embodiments areprovided in the following description only as examples and modificationswill be apparent to those skilled in the art. The general principlesdefined in the following description would be applied to otherembodiments, alternatives, modifications, equivalents, and applicationswithout departing from the spirit and scope of the present invention.

The following description is disclosed to illustrate detailedly twotypical embodiments of the present invention, but the embodiments of thepresent invention are exemplary only and not intended to be limiting. Atthe same time, the advantages of the present invention will be moreclearly and easier to understand by the detailed description. Aplurality of relatively independent concise schematic diagrams direct toinvolved components of the present invention, for example a drivingdevice and a control circuit, are respectively given to understandclearly and illustrating the description and make the description moresimple and clear.

Referring to the drawings, the following description will be apparent:an automatic shoe-cover machine of the present invention comprises ashoe-cover roller 5, wherein multiple serially connected shoe-covers 1are wound on the shoe-cover roller 5, wherein each of the shoe-covers 1has a foot inserting opening 4, wherein a blocking device 7, a cuttingdevice 6 and a sliding pull hook 15 are sequentially provided on theradial direction of shoe-cover roller 5, wherein the sliding pull hook15 is connected to a driver, wherein the driver is connected with anelectric motor and an electric controller.

The shoe-cover 1 is made of soft material and has a bag-shapedstructure, wherein multiple serially-connected shoe-covers 1 are alignedin a linear manner by a plurality of connecting points 2 providedrespectively at two ends each of the shoe-covers and wound on theshoe-cover roller 5 to define a coil-shaped structure.

The blocking device 7 comprises a blocking portion 7-1 and twosupporting portions 7-2, wherein the blocking portion 7-1 is acoordinating member, or a blocking panel or blocking strip arrangedmovably, wherein each of the supporting portions 7-2 is connected withthe blocking portion 7-1.

The blocking device 7 is a single blocking member providedindependently, or two or more blocking members provided side by side,wherein the cutting device 6 is provided above the blocking device 7.

The cutting device 6 comprises a cutter 23 and an electric drivingdevice, wherein a cutter protecting casing 24 is movably provided on thecutter 23.

A shoe-cover transmitting wheel 8 is provided below the shoe-coverroller 5, wherein the shoe-cover transmitting wheel 8 is connected tothe shoe-covers arranged in a linear manner.

The driver comprises a driving belt 17 and two driving wheels 18,wherein the two driving wheels 18 are respectively provided outside ofthe shoe-cover roller 5 and outside of the sliding pull hook 15, whereinthe driving belt 17 has two ends, wherein the two ends of the drivingbelt 17 are respectively sleeved on the two driving wheels 18 and areconnected with the sliding pull hook 15, wherein the driving belt 17 isa belt or a chain, each of the driving wheels 18 is a pulley or a chainwheel.

The driver comprises a driving screw 19 and a screw nut 20, wherein thedriving screw 19 is provided below the shoe-cover roller 5, and thescrew nut 20 is sleeved on the driving screw 19 and is connected withthe sliding pull hook 15.

The driver comprises a driving chain 21 and a driving gear 22, whereinthe driving gear 22 is provided below the shoe-cover roller 5, thedriving chain 21 and the driving gear 22 are engaged with each other,and the driving chain 21 is connected with the sliding pull hook 15.

The shoe-cover roller 5 is a hollow sleeve, wherein a central fixing rod10 for the shoe-cover roller 5 is provided in the hollow sleeve, and twocone-shaped fixing casings 11 and a stopping friction material 12 forthe shoe-cover roller 5 are respectively provided on the end portions ofthe central fixing rod 10, wherein the stopping friction material 12 forthe shoe-cover roller 5 is adapted for controlling the friction forceresulted from the turning of the central fixing rod 10 by adjusting aregulating bolt 14.

Referring to the drawings, the following description is apparent: Ashoe-cover packaging mechanism of the present invention comprises ashoe-cover roller 5 and the shoe-covers 1 wound on the shoe-cover roller5, wherein each of the shoe-covers 1 has a bag-shaped structure, whereinthe shoe-cover 1 has an inserting opening 4 provided thereat, whereinthe inserting opening 4 has elastic material provided thereat, andmultiple shoe-covers 1 are connected in a linear manner by a pluralityof the connecting points 2 provided respectively at two ends of each ofthe shoe-covers 1 and are wound on the shoe-cover roller 5 to bepackaged to define a coil-shaped structure, wherein the shoe-coverroller 5 is provided in an axis of the coil-shaped structure made of theshoe-covers 1.

The shoe-cover roller 5 is a cylinder-shaped roller.

The shoe-cover roller 5 has a protrusion 5-1 provided in a middleportion thereof, wherein the protrusion 5-1 has a cross section biggerthan a cross sections of each of two ends of the cylinder-shaped roller.

The inserting opening 4 is under an opened state and is provided at themiddle portion of the shoe-cover roller 5 or two ends of the protrusion5-1 provided at the middle portion of the shoe-cover roller 5.

The shoe-cover package and the protrusion 5-1 of the shoe-cover roller 5are round, oval, spindle-shaped or rectangular.

The connecting point 2 between two neighboring shoe-covers is astructure defined accordingly during the edge banding process of twoends of each of the two neighboring shoe-covers.

The connecting point 2 of one shoe-cover 1 is connected to one end ortwo ends of the connecting point 2 of another neighboring shoe-cover.

The shoe-cover roller 5 is a hollow sleeve, wherein a central fixing rod10 for the shoe-cover roller 5 is provided in the hollow sleeve, and twocone-shaped fixing casings 11 are respectively provided on two ends ofthe central fixing rod 10, wherein the two ends of the central fixingrod 10 extend out of the shoe-cover roller 5, wherein a smaller openingend of each of the cone-shaped fixing casings 11 faces the middleportion of the shoe-cover roller 5.

Embodiment 1

In order to make the operating process of the present invention beunderstood more clearly, the illustration is given by a blocking devicebeing two blocking members provided side by side in a first embodiment.

As shown in FIGS. 5A-5F and FIGS. 6A-6F, an automatic shoe-cover machineof the present invention comprises a shoe-cover roller 5, whereinmultiple serially-connected shoe-covers 1 are wound on the shoe-coverroller 5, wherein each of shoe-covers 1 has a foot inserting opening 4,wherein a blocking device 7, a cutting device 6 and a sliding pull hook15 are sequentially provided on the radial direction of the shoe-coverroller 5, wherein the sliding pull hook 15 is connected to a driver,wherein the driver is connected with an electric motor and an electriccontroller.

The blocking device 7 is two blocking members provided side by side,wherein the cutting device 6 is provided between the front blockingmember and the back blocking member, wherein each of the front blockingmember and the back blocking member comprises a blocking portion 7-1 andtwo supporting portions 7-2, wherein the blocking portion 7-1 has aV-shaped structure and is wider from bottom to top, wherein each of thesupporting portions 7-2 is a cross rod, which are respectively providedon two ends of the blocking portion 7-1.

As shown in FIG. 1A-FIG. 5D, FIG. 2A-FIG. 2D and FIG. 3A-FIG. 3D, theshoe-cover 1 of the present invention is made of soft material and has abag-shaped structure, wherein a plurality of shoe-covers 1 are alignedin a linear manner by a plurality of connecting points 2 providedrespectively at two ends of each of the shoe-covers and wound on theshoe-cover roller 5 to define a coil-shaped structure.

The connecting point 2 of the shoe-cover 1 is a banded edge or a portionof a banded edge formed at one end of the shoe-cover 1 during themanufacturing process, wherein the banded edge may be defined by variousprocesses and technologies, such as electric heating, ultrasonicwelding, sewing, bonding, wherein the rolled shoe-cover package iscylindrical, drum-shaped, rectangular or fusiform, wherein the footinserting opening 4 of the shoe-cover 1 is under a closed state andprovided in a rolled side, or under an opened state and provided on themiddle portion of the shoe-cover roller 5 or two ends of the protrusion5-1 of the middle portion of the shoe-cover roller 5.

For the shoe-cover 1 having an inserting opening under the closed state,the automatic shoe-cover machine requires an opening mechanism to openpreviously the foot inserting opening of the shoe-cover 1 so as to makethe sliding pull hook 15 insert the shoe-cover 1.

In order to illustrate simply and clearly the present invention, anapplication example that the shoe-cover 1 having an inserting openingunder the closed state is used for an automatic shoe-cover machine isgiven, but in a practical application, an additional opening mechanismmay be provided to ensure the foot inserting opening 4 of the shoe-cover1 be under the opened state so as to get better results.

As shown in FIGS. 5A-5F and FIGS. 9A-9D, the blocking device 7 comprisesa blocking portion 7-1 and two supporting portions 7-2, wherein theblocking portion 7-1 is a coordinating member, or a blocking panel orblocking strip arranged movably, wherein the supporting portions 7-2 areconnected with the blocking portion 7-1.

The blocking portion 7-1 is movably provided in a middle portion of thefoot inserting opening 4 of a dragged shoe-cover 1 to prevent multipleconnected linear shoe-covers being dragged disorderly and keep the footinserting opening 4 of the dragged shoe-cover 1 being under an openedstate.

As shown in FIGS. 5A-5F, the blocking portion 7-1 is made of smooth andelastic material, wherein the blocking portion 7-1 has a V-shapedstructure and is wider from bottom to top, wherein the blocking portioncan be deformed under the effect of a suitable external force to allowthe shoe-cover to go through, and in practical applications, theblocking portion 7-1 may achieve the objects of blocking and allowingthe shoe-cover to go through by supplying an additional spring providedat the blocking device to pre-determine a torsion force, besides theblocking panel or blocking strip made of smooth and elastic material.

As shown in FIGS. 9A-9D, the blocking portion 7-1 may be a coordinatingmember which can be driven by a driving device to be closed and openedto make the foot inserting opening be easier to be inserted and enablethe foot inserting opening 4 to be opened at a pre-determined position,or a blocking panel or blocking strip provided movably to accomplish areverse and achieve the objects of blocking and allowing the shoe-coverto go through by actuation from a coordinating element 16, or two ormore blocking portions are provided with the supporting portions, and inpractical applications, the blocking portion may be a combination of theabove types to define one or more arrangements thereof.

In order to illustrate simply and clearly the present invention, onlyone example of the blocking portion 7-1 made of smooth and elasticmaterial is given, wherein the blocking portion 7-1 is a blocking panelor blocking strip having a V-shaped structure, wherein the blockingpanel or blocking strip is wider from bottom to top.

As shown in FIGS. 5A-5F and FIGS. 12A-12D, the blocking device 7 of thepresent invention is a single blocking member provided independently, ortwo blocking members provided side by side, the cutting device 6 isprovided above the blocking device 7, wherein the blocking portion 7-1has a V-shaped structure and is wider from bottom to top to make thefoot inserting opening be easier to be inserted and keep the footinserting opening being opened in a greatest degree, wherein theblocking portion 7-1 is provided in an inclined manner and the cuttingdevice 6 is provided above the blocking device 7 to ensure the footinserting opening to be at a best opened position.

As shown in FIGS. 5A to 5F, FIG. 11 and FIG. 13, the cutting device 6comprises a cutter 23 and an electric actuating and controlling device,wherein the cutting device 6 comprises a cutter protecting casing 24,wherein the cutter protecting casing 24 is able to move up and down toprevent other portions of the shoe-cover 1 being cut by mistake, and thecutter 23 may be a rotatable blade to achieve the object of cutting off.

As shown in FIGS. 7A to 7C, a shoe-cover transmitting wheel 8 isprovided below the shoe-cover roller 5 to align the shoe-covers in alinear manner, and the swing position of the shoe-cover transmittingwheel 8 can be adjusted by providing an additional spring 9 to maintaina suitable pulling intensity of the shoe-cover 1 connected with theshoe-cover transmitting wheel 8.

The shoe-cover transmitting wheel 8 is a mechanism being separated,wherein the shape of the shoe-cover transmitting wheel 8 may has acommon roller-shaped structure for tensioning or temporary passing, orthe shoe-cover wheel 8 is designed into a rotating member having abigger central portion and two smaller edge portion or a rotating wheelhaving forward thread and reverse thread provided symmetrically thereinfrom the middle portion to two ends so as to make the foot insertingopening of the shoe-cover 1 be further opened and maintained during themoving process of the shoe-covers 1 aligned in a linear manner, and theshoe-cover transmitting wheel 8 may be a combination of above structuretypes to define one or more arrangements thereof.

In order to illustrate simply and clearly the present invention herein,the foot inserting opening 4 of the linear shoe-cover 1 is under anopened state, and the elastic material 3 provided at the shoe-cover 1has a suitable tension strengthen, so the shoe-cover transmitting wheel8 is not illustrated in the specific operating process of the presentinvention.

As shown in FIGS. 10A to 10C and FIG. 13, the driver comprises a drivingbelt 17 and two driving wheels 18, wherein the two driving wheels 18 arerespectively provided outside of the shoe-cover roller 5 and outside ofthe sliding pull hook 15, wherein the driving belt 17 has two ends,wherein the two ends of the driving belt 17 is respectively sleeved onthe two driving wheels 18 and are connected with the sliding pull hook15, wherein the driving belt 17 is a belt or a chain, each of thedriving wheels 18 is a pulley or a chain wheel, wherein each of thedriving wheels is actuated by an electric motor or electricalcontroller.

Optionally, the driver comprises a driving screw 19 and a screw nut 20,wherein the driving screw 19 has two ends extended outside of theshoe-cover roller 5 and outside of the sliding pull hook 15, wherein thescrew nut 20 is sleeved on the driving screw 19 and is connected withthe sliding pull hook 15, wherein the driving screw 19 is actuated by anelectric motor or electrical controller.

Optionally, the driver comprises a driving chain 21 and a driving gear22, wherein the driving gear 22 is provided below the shoe-cover roller5, the driving chain 21 and the driving gear 22 are engaged with eachother, and the driving chain 21 is connected with the sliding pull hook15 and actuated by an electric motor or electrical controller.

The sliding pull hook 15 is symmetrically and respectively provided onboth sides of the shoe-cover 1 and connected with the driver, whereinthe driver and the cutting device 6 are actuated by an electric motor orelectrical control device.

As shown in FIG. 4 and FIG. 8, the shoe-cover roller 5 is a hollowsleeve, wherein a central fixing rod 10 of the shoe-cover roller isprovided in the hollow sleeve, and two cone-shaped fixing casings 11 arerespectively provided on two ends of the central fixing rod 10, whereineach of the two ends of the central fixing rod 10 extends out of theshoe-cover roller 5, wherein a smaller opening of each of thecone-shaped fixing casings 11 faces a middle portion of the shoe-coverroller 5 to make the central fixing rod 10 pass through the shoe-coverrolling sleeve, wherein the central fixing rod 10 is located by thecone-shaped fixing casings 11 to facilitate the installation of theshoe-covers 1 and decrease the production cost of the shoe-covers,wherein stopping friction material 12 is arranged to rub against one endof the central fixing rod 10 to prevent the shoe-covers rotating freelyof the shoe-cover roller 5, wherein the friction force can be adjustedby a regulating bolt 14.

Referring to FIG. 1A to FIG. 13, the operating process of the presentinvention is detailedly illustrated:

Multiple shoe-covers are serially connected with by a plurality ofconnecting points 2, wherein the connecting points 2 are formed by heatedge banding, wherein the corresponding shoe-covers 1 are wound on theshoe-cover roller 5, wherein the foot inserting opening 4 of each of theshoe-covers 1 is under an opened state, wherein a first shoe-cover 1wound on the shoe-cover roller 5 is dragged and the foot insertingopening 4 of the first shoe-cover 1 is sleeved on a first blockingportion of two blocking portion 7-1 provided side by side, wherein eachof the blocking portion 7-1 is made of smooth and elastic material,wherein each of the blocking portion 7-1 is V-shaped and inclinedlyprovided at a front end of the shoe-cover roller 5 so that an elasticmaterial 3 sleeved on the first blocking portion 7-1 can go up to a topend of the first blocking portion 7-1 arranged inclinedly by a tensileforce of the elastic material 3 of the first shoe-cover 1 to drive aswitch K3 of a control circuit to move downwardly, so the switch K3 isturn on, and a relay begins to work, a normally open contract iselectrically communicated and a motor begins to rotate forward to drivethe driver to move, wherein the sliding pull hook 15 is connected withthe driving belt 17 of the driver so that when the motor begins torotate forward, the sliding pull hook 15 is driven to move towards theblocking device 7, and when the sliding pull hook 15 moves to the firstblocking portion 7-1 and a hook end of the sliding pull hook 15 is pushdown and passes over the elastic material 3 of the shoe-cover 1 wound onthe blocking portion 7-1, the sliding pull hook 15 touches a switch K2of the control circuit, and the switch is turn off, a switch K1 iscommunicatedly connected with the switch K2 and the switch K1 are undera state of interlocking, the normally open contract of the relay is cutoff, the motor stops rotating forward, at the same time, a normallyclosed contract of the relay is powered, and the motor begins to rotatein reverse to drive the sliding pull hook 15 to move back to reset, andbecause the hook end of the sliding pull hook 15 passes over the elasticmaterial 3 of the shoe-cover 1 covering the blocking portion 7-1 beforethe sliding pull hook 15 stops moving forward, when the sliding pullhook 15 moves back to reset, the sliding pull hook 15 hooks the elasticmaterial 3 of the first shoe-cover 1 and drags it back to open the footinserting opening 4 thereof, and when the sliding pull hook 15 catchesthe elastic material 3 of the first shoe-cover 1 and passes through thefirst blocking portion 7-1, the elastic material 3 of the firstshoe-cover 1 upwardly presses the first blocking portion 7-1 to deformso as to allow the first shoe-cover to go through, and when the slidingpull hook 15 hooks the elastic material 3 of the first shoe-cover 1 andpasses through the second blocking portion 7-1, the elastic material 3of the first shoe-cover 1 upwardly presses the second blocking portion7-1 to deform so as to allow the first shoe-cover to go through, andthen the sliding pull hook catching the elastic material 3 of the firstshoe-cover 1 keeps moving back and the connecting point 2 of the firstshoe-cover 1 begins to press upwardly the first blocking portion 7-1 todeform and allow the first shoe-cover to pass through, at the same time,the first shoe-cover 1 leads a front end of the elastic material 3 ofthe second shoe-cover 1 to go through the first blocking portion 7-1,and the elastic material 3 of the backend of the first shoe-cover 1,which is next to the connecting point 2 of the first shoe-cover 1,covers the second blocking portion 7-1, and because the blocking portion7-1 is made of smooth and elastic material 3 and is inclinedly provided,the elastic material 3 of the backend of the first shoe-cover 1 may bedragged by a backward force from the sliding pull hook 15 to move towardan upper end of the second blocking portion 7-1, and when the slidingpull hook 15 moves back to a pre-determined position, the switch K1 ofthe control circuit is touched and the switch K1 is cut off, the motorstops rotating in reverse, at the same time, the electric controllerdrives the cutting device 6 to move downwardly, and after the cutter 23cuts off the connecting point 2 provided between the first shoe-cover 1and the second shoe-cover 1, the cutting device 6 resets, and thedragged first shoe-cover 1 is separated from the second shoe-cover 1, atthe moment, the foot inserting opening 4 of the first shoe-cover is keptunder an opened state by the sliding pull hook 15 and the secondblocking portion 7-1, and the elastic material 3 of the front end of thesecond shoe-cover 1 goes through the first blocking portion 7-1, and theconnecting point 2 provided at the front end of the second shoe-cover 1is cut off, so the elastic material 3 of the second shoe-cover 1, whichcovers the first blocking portion 7-1, loses the dragging of the firstshoe-cover and is driven by an restoring force thereof to move upwardlyto the top end of the first blocking portion 7-1 to accomplish thepreparation work, at the moment, a user is able to put a foot into thefirst shoe-cover 1 through the foot inserting opening 4 and dragdownwardly and backwardly the first shoe-cover 1 to deform the secondblocking portion so as to make the elastic material 3 of the backend ofthe first shoe-cover 1, which covers the second blocking portion 7-1,separate from the second blocking portion 7-1 and be worn on the foot ofthe user, so as to finish a cycle. Because the foot downwardly andbackwardly drags the first shoe-cover 1, the switch K3 is touched andturn on again, so the sliding pull hook 15 is driven by the motor andthe driving belt 17 to move toward so as to start a next cyclic process.

Embodiment 2

In the second embodiment, we illustrate the present invention by anexample of the blocking device 7 comprising a single blocking memberprovided independently.

As shown in FIGS. 12A-12D and FIG. 13, the first shoe-cover 1 wound onthe shoe-cover roller 5 is dragged out and the foot inserting opening 4of the first shoe-cover 1 is opened to cover a single blocking portion7-1, because the blocking portion 7-1 is made of smooth and elasticmaterial and inclinedly provided, the elastic material 3 of a front endof the first shoe-cover 1, which covers the blocking portion 7-1, may bedriven by a tensile force from the elastic material 3 of the shoe-cover1 to move to a top end of the blocking portion 7-1 provided inclinedlyand touch the switch K3, and the sliding pull hook 15 drives the elasticmaterial 3 provided at a front end of the first shoe-cover 1 to movebackwardly and open the foot inserting opening 4, and when the slidingpull hook 15 moves to a pre-determined position, the switch K2 istouched and the sliding pull hook 15 stops moving, at the moment, thefoot inserting opening 4 is completely opened and kept under an openedstate, wherein a foot of a user can be put into the first shoe-cover 1through the foot inserting opening 4 and is downwardly and backwardlydragged, and then the elastic material 3 of the elastic material 3 of abackend of the first shoe-cover 1, which covers the blocking portion7-1, is driven by an external force from the foot to deform the blockingportion 7-1 so as to separate from the blocking portion 7-1, and theelastic material 3 of a front end of a following second shoe-cover 1,which is connected to the first shoe-cover 1, is dragged to pass throughthe blocking portion 7-1, so the blocking portion 7-1 loses the externalforce from the elastic material 3 and resets to insert into the footinserting opening 4 of the second shoe-cover 1, and during the resettingprocess of the blocking portion 7-1, the cutting device 6 issynchronously actuated, at the moment, the first shoe-cover 1 is draggedto a pre-determined position and waits for several seconds for cuttingoff the corresponding connecting point 2, at the same time, the switchK3 is touched and the switch K3 is turn on again, and the sliding pullhook 15 is driven by the motor and the driving belt 17 to move toward soas to prepare for a next cycle, so the connecting point 2 providedbetween the first shoe-cover 1 and the second shoe-cover 1 is cut off,and the first shoe-cover is worn on the foot, wherein the secondshoe-cover loses a pulling force from the first shoe-cover 1 and thefoot inserting opening 4 of the second shoe-cover 1 is provided on theblocking portion 7-1, and the elastic material 3 covering the blockingportion 7-1 is driven by an restoring force thereof to move upwardly tothe top end of the blocking portion 7-1 provided inclinedly to preparingfor being opened by the sliding pull hook 15. At the moment, a wholecycle is finished, the remaining work process which is not detailedlydescribed is same as the first embodiment.

It should be noted that: for these skilled in the art, all modificationsand deformations without departing from the spirit should be includedwithin scope of the present invention.

1-18. (canceled)
 19. An automatic shoe cover machine, comprising: a shoecover roller; a plurality of shoe covers being linked in a serial mannerand being rolled up at said shoe cover roller, wherein each of said shoecovers has a foot inserting opening; a blocking device coupled at saidshoe cover at a first position to retain said first shoe cover inposition; an electric motor; a sliding pull hook driven to move by saidelectric motor to automatically pull said first shoe cover from saidshoe cover roller so as to open up said foot inserting opening of saidfirst shoe cover; and a cutter device being automatically actuated tocut off said first shoe cover from a subsequent shoe cover, wherein saidblocking device, said cutting device and said sliding pull hook aresequentially provided on a radial direction of the shoe cover roller.20. The automatic shoe cover machine, as recited in claim 19, whereinsaid blocking device comprises a first blocking portion and a secondblocking portion, wherein when said sliding pull hook is engaged withsaid first shoe cover to pull said first shoe cover, said first blockingportion is engaged with a front end of said subsequent shoe cover whilesaid second blocking portion is engaged with a back end of said firstshoe cover so as to open up said foot inserting opening of said firstshoe cover between said second blocking portion and said sliding pullhook.
 21. The automatic shoe cover machine, as recited in claim 20,wherein each of said first and second blocking portions has a V-shape tohold said shoe cover in position.
 22. The automatic shoe cover machine,as recited in claim 19, wherein said electric motor generates a forwardpower to drive said sliding pull hook moving toward said first shoecover at the radial direction so as to couple with said first shoe coverand generates a reverse power to drive said sliding pull hook movingaway from said first shoe cover at the radial direction so as to pullsaid first show cover from said shoe cover roller.
 23. The automaticshoe cover machine, as recited in claim 19, wherein the shoe cover ismade of soft material and has a bag-shaped structure, wherein said shoecovers are aligned in a linear manner and are connected by a pluralityof connecting points that each connecting point is provided between twoends of two consequently shoe covers, wherein said shoe covers are woundaround said show cover roller to form a coil-shaped structure.
 24. Theautomatic shoe cover machine, as recited in claim 19, wherein saidcutting device comprises a cutter and an electric driving device,wherein said cutting device is located above said blocking device. 25.The automatic shoe cover machine, as recited in claim 19, furthercomprising a transmitting wheel provided below the shoe cover roller toensure said shoe covers to be aligned in a linear manner.
 26. Theautomatic shoe cover machine, as recited in claim 19, further comprisinga driver operatively linked between said electric motor and said slidingpull hook, wherein said driver comprises a driving belt and two drivingwheels, wherein said two driving wheels are respectively provided atouter sides of said shoe cover roller and outer sides of the slidingpull hook, wherein said driving belt is coupled with said driving wheelsand is connected with said sliding pull hook, wherein said driving beltis selected from the group consisting of a belt and a chain, whereineach of said driving wheels is selected from the group consisting of apulley or a chain wheel.
 27. The automatic shoe cover machine, asrecited in claim 19, further comprising a driver operatively linkedbetween said electric motor and said sliding pull hook, wherein saiddriver comprises a driving screw and a screw nut, wherein said drivingscrew is provided below said shoe cover roller, wherein said screw nutis sleeved on said driving screw and is connected with said sliding pullhook.
 28. The automatic shoe cover machine, as recited in claim 19,further comprising a driver operatively linked between said electricmotor and said sliding pull hook, wherein said driver comprises adriving chain and a gear, wherein said driving chain is provided belowsaid shoe cover roller, wherein said driving gear and said driving chainare engaged with each other, wherein said driving chain is connectedwith said sliding pull hook.
 29. A shoe cover packaging mechanism,comprises: a shoe cover roller; and a plurality of shoe covers wound onthe shoe cover roller, wherein each of said shoe covers has a bag-shapedstructure having an elastic inserting opening, wherein said shoe coversare aligned in a linear manner and are connected with each other via aplurality of connecting points that each connecting point is providedbetween two ends of two consequent shoe covers, wherein said shoe coversare rolled up at said shoe cover roller with respect to an axis thereofto form a coil shape structure to be packaged.
 30. The shoe coverpackaging mechanism, as recited in claim 29, wherein the shoe coverroller is a cylinder-shaped roller.
 31. The shoe cover packagingmechanism, as recited in claim 29, wherein said shoe cover roller has aprotrusion provided at a middle portion thereof, wherein said protrusionhas a cross section bigger than a cross section of each of two ends ofsaid cylinder-shaped roller.
 32. The shoe cover packaging mechanism, asrecited in claim 31, wherein said inserting opening of said shoe coveris opened at an opened state that said inserting opening of said openedshoe cover is aligned with said middle portion of said shoe cover rollerand a width of said inserting opening is within two ends of saidprotrusion.
 33. The shoe cover packaging mechanism, as recited in claim32, wherein said shoe covers are rolled up at said protrusion of saidshoe cover roller, wherein a shape of said protrusion of the shoe coverroller is selected from the group consisting of round, oval,spindle-shaped and rectangular.
 34. The shoe cover packaging mechanism,as recited in claim 29, wherein said shoe cover roller is a hollowsleeve, wherein a central fixing rod for said shoe cover roller isprovided in said hollow sleeve, and two cone-shaped fixing casings forsaid shoe cover roller are respectively provided on two ends of saidcentral fixing rod, wherein each of said cone-shaped fixing casings hasa smaller opening, wherein said smaller opening faces a middle portionof said shoe cover roller.
 35. A method of automatically dispensing shoecovers, comprising the steps of: (a) providing a plurality of shoecovers being linked in a serial manner and being rolled up at a shoecover roller, wherein each of said shoe covers has afoot insertingopening; (b) coupling a first shoe cover at a blocking device; (c)driving a sliding pull hook to move couple with said first show cover;(d) automatically pulling said first shoe cover from said shoe coverroller by said sliding pull hook so as to open up said foot insertingopening of said first shoe cover; (e) cutting off said first shoe coverfrom a subsequent shoe cover via a cutter device, wherein said blockingdevice, said cutting device and said sliding pull hook are sequentiallyprovided on a radial direction of the shoe cover roller.
 36. The methodas recited in claim 35 wherein in the step (c), said sliding pull hookis moved toward said first shoe cover at the radial direction to couplewith said first shoe cover by a forward power generated by an electricmotor, wherein in the step (d), said sliding pull hook is moved awayfrom said first shoe cover at the radial direction to pull said firstshow cover from said shoe cover roller by a reverse power generated bysaid electric motor.
 37. The method as recited in claim 35, wherein thestep (d) further comprising the steps of: (d.1) engaging a firstblocking portion of said blocking device with a front end of saidsubsequent shoe cover; and (d.2) engaging a second blocking portion ofsaid blocking device with a back end of said first shoe cover so as toopen up said foot inserting opening of said first shoe cover betweensaid second blocking portion and said sliding pull hook.
 38. The method,as recited in claim 35, wherein the shoe cover is made of soft materialand has a bag-shaped structure, wherein said shoe covers are aligned ina linear manner and are connected by a plurality of connecting pointsthat each connecting point is provided between two ends of twoconsequently shoe covers, wherein said shoe covers are wound around saidshow cover roller to form a coil-shaped structure.